Apparatus



`s sheets-sheet 1. D. GROVE.

STEAM COOKING APPARATUS.

(No Model.)

Patented Dc. 27,1881.,

INVENTOR I WITNESSES Attorney N Pains. Pmummugmphef. wmmgmn. n. c.

(No Model.) 3 Sheets-Sheet '2.

D. GROVE.

STEAM GOOKING APPARATUS.

No. 251,578. Patented Dec. 27,1881.

. vvf/ITNESSES 1N VEJvToR mi 7mm M y MF .Attorney N. FETERS Flwlo-umugmphlr. wa-mngtan. D. C.

(NoModel `asheets-sheer,3.

D. GROVE.

STEAM COOKING APPARATUS.

. No. 251,578. Patented 1360.27.1881.

WITNESSES www AW@ PETERS. Plwlo-Lirhugnphur. washington. D. C.

UNITED STATES PATENT OFFICE.

DAVID GROVE, OF BERLIN, PRUSSIA, GERMANY.

STEAM COOKING APPARATUS.

SPECIFICATION forming part of Letters Patent No. 251,578, dated December 2'?, 1881.

Application filed August 17, 1881.

To all lwhom fit-may concern:

Be it known that I. DAVID GROVE, of the city of Berlin, in the Kingdom of Prussia, in

the Empire of Germany, have invented a new and useful Improvementin Steam Cooking Apparatus for Military and other Purposes, ot' which the following is a specitication.

My invention relates to improvements in transportable or stationary steam cooking apparatus for military or other purposes.

In the following specica'tion I have explained the details-of construction in which my invention consists, and have fully illustrated themin the accompanyingdrawings, in which- Figure l represents a side elevation, partly in section; Fig. 2, atransverse section ofFig. 1; Fig. 3, a plan view, partly in section, on line a b ot' Fig. l. Fig. 4 is a diagram representing the arrangement of the coils, hereinafter explained.

The apparatus shown in these drawings is represented as mounted upon wheels, and is portable, and specially adapted for military purposes.

The wheels A Ain these drawings are represented as supporting suitable frame-work, drivers seat with springs, and appliances usually required in such a structure. The rear wheels are provided with a bent axle to give room for the body, the front axle being straigh and of ordinary construction.

The fire-box (represented in Figs. 1, 2,and4 at D') is composed of tubes or pipes, which at the same time form the box and grate and act as heating-tubes for the Water. rPhe arrangement of these tubes is shown more clearly in Fig. 1. They are coiled within the tire-box, next to the wall thereof, and form an inner wall or lining for said box. The ends extend upward and open into a water-space above, as shown in Fig. 1 at 2 2. The tire-box is located in rear of the hind axle and extends below it. The line extends from the tire-box underneath the wagon to the front thereof, and there is directed upward to the smoke-pipe. The line below the wagon is provided with coiled pipes arranged in the same manner as those in the lire-box.

rlhe water-pipes in rear of the axle on the lowerpartof theflre-box are arranged,asshown in Fig. 1, to form a grate,which upholds the fuel (No model.)

and admits air thereto. Along the iiue or smoke chamber, arranged from the axle lor-y ward, the pipes are placed more closely together and all in thc same line at the bottom. Outside ot' this tubular tire-box and chamber is a sheet-iron casing, K, which completely incloses the whole, excepting at that portion where the air is admitted through the gratebars. The coils are short, as shown in Fig. 4, and may open alternately, one set on the right and the other on the lef't, into the water-chainber. These pipes being in sections, any part, when damaged, may be easily replaced.

The water-chamber is formed b v the sheetmetal casing K, Figs. I and 2. Within this chamber are food-recel'itacles L L und M M, the two larger being arranged in t'ront ot' the rear axle, and designed for cooking food forthe rank and le, while the smaller are in rear of the said axle, and may be used for cooking` the food of the oiiicers. They may be made with inclined bottoms,as shown in Fig. 2, for convenience in removing the food. These i'ood receptacles or boilers are preferably made ot' such size that the meals for halt' a battalion can be cooked at one time. 'lhey are provided with air-tight doors or lids L', which may be pressed down to form a tight joint by means ot' eccentrics, screws, or any equivalentmeans, so that when the vessels are used as boilers a suitable pressure may be attained. These covers L' are provided with hinges and handles for convenience in use. The hinges are attached to the central part, n.

A safetyvalvemay be provided for letting the steam into the chimney H. The pressure in the chambers for cooking purposes should never exceed more than one and three-quarters of ordinary atmospheric pressure.

A water reservoir or receptacle for feeding the apparatus (marked P) is placed over the forward wheels, and is provided with doubleacting cock p, for supplying water to the apparatus when it is required to compensate for the waste occasioned by the escape ot' steam. Not much water is required for this purpose, as the steam is for the most part condensed upon the walls of the receptacle.

A tool-box is provided, as 'shown at R, upon one side ofthe apparatus next the drivers seat. The shell or casing K of the receptacle IOO should be so attached to the frame-work of the carriage that all loosening byjarringin transportation shall be avoided.

The space between the coils and the outer shell, K, may be filled with any suitable non-- conducting material for the purpose of retaining heat within the chambers.

The exterior casing, of wood or other suitable material, (shown at 11",) may be used to inclose the whole apparatus.

As represented in Figs. 1 and 3, the chimney H is pivoted over the central smoke-fine, and when the apparatus is not in use for cooking purposes this smoke-due may be lowered to rest in the fork G upon the rear of the apparatus. lt will be understood that sufficient quantity ot' water must be kept within the shell or casing to be in communication with the pipes which open within said casing. This constitutes the steam-chamber, and within it are placed the cooking-receptacles L M, as shown in Fig. 2, so that the steam acts upon the bottom, sides, and ends of these receptacles.

The tubes or pipes which form the upper part ot' the smoke-chamber, and just underneath the water-reservoir, are preferably arranged, as shown in Fig. 1, so that each third coil is in a plane lower than the two preceding and two following coils. alarge amount ot' heating-surface and an equal and rapid generation ot' steam, and the heat resulting thereform is equally distributed over all the walls of the apparatus. Food is thus cooked in a very short time, and very few men are required to attend the apparatus.

A tire can be started while the apparatus is in motion, so that a very short time is required after arriving at bivouac to complete the cooklng.

A re-door, C, closes the fire-box, so that no lire is visible to the enemy, and in this respect These pipes give.

there is great advantage over the ordinary mode of cooking by open fires.

In case very light tiring material be used, sparks may he extinguished by letting steam into the smoke-stack, or by any suitable sparkextinguisher applied to said smoke-stack.

It is evident that the apparatus may be used as a stationary one by dispensing With-the wheels and locating it upon suitable foundation.

In case a separate compartment be not employed for the use of the officers, the cookingchambers for the rank and le can bey divided into four equal compartments.

This apparatus can also be adapted, without departing from the spirit of' my invention, for use on board ship. y

An ordinary water-gage, D, and lnanometer E may be used in connection with the apparatus.

Having thus described my invention, what I claim is- 1. A steam cooking apparatus consisting of a tire-boxfand due having surrounding coils forming the walls and grate thereof, the Waterchamber above said box and flue and in communication with said coils, the food-receptacles arranged above the water chamber, all the parts being arranged as set forth.

2. The combination of the wheels A A and frame-work, as shown, bent axle, and re-box composed of' the bent tubes, Water-chamber connected therewith, food receptacles, and hinged smoke-stack,substantially asdescribed.

3. The combination of thefire-box,.the waterchamber, food-receptacles, and a water-supply, P, mounted over the forward wheels, substantially as described.

DAVID GROVE.

Witnesses:

ALBERT PIZARVAL, J oHN HOLMES. 

